"There are unresolved issues at this moment which have not been dissolved," according to a senior Iranian nuclear negotiator who says there is no "artificial deadline" for talks. Rough Cut (no reporter narration)

A group of four, including two teenagers, are arrested near Barcelona on suspicion of plotting to travel to Syria and fight with Islamist militants, the Spanish Interior Ministry says. Vanessa Johnston reports.

The Iranian Revolution, around a quarter century ago, set the stage for today?s brutal negotiations over Iran?s alleged nuclear ambitions. WSJ?s Jason Bellini has The Short History of Iran?s revolutionary ideals.

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